183 lines
5.9 KiB
C
183 lines
5.9 KiB
C
/**********************************************************************
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* $Id$ lpc43xx_wwdt.h 2011-06-02
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*//**
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* @file lpc43xx_wwdt.h
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* @brief Contains all macro definitions and function prototypes
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* support for WWDT firmware library on lpc43xx
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* @version 1.0
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* @date 02. June. 2011
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* @author NXP MCU SW Application Team
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*
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* Copyright(C) 2011, NXP Semiconductor
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* All rights reserved.
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*
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***********************************************************************
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* Software that is described herein is for illustrative purposes only
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* which provides customers with programming information regarding the
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* products. This software is supplied "AS IS" without any warranties.
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* NXP Semiconductors assumes no responsibility or liability for the
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* use of the software, conveys no license or title under any patent,
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* copyright, or mask work right to the product. NXP Semiconductors
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* reserves the right to make changes in the software without
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* notification. NXP Semiconductors also make no representation or
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* warranty that such application will be suitable for the specified
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* use without further testing or modification.
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* Permission to use, copy, modify, and distribute this software and its
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* documentation is hereby granted, under NXP Semiconductors<72>
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* relevant copyright in the software, without fee, provided that it
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* is used in conjunction with NXP Semiconductors microcontrollers. This
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* copyright, permission, and disclaimer notice must appear in all copies of
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* this code.
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**********************************************************************/
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/* Peripheral group ----------------------------------------------------------- */
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/** @defgroup WWDT WWDT (Windowed WatchDog Timer)
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* @ingroup LPC4300CMSIS_FwLib_Drivers
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* @{
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*/
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#ifndef lpc43xx_WWDT_H_
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#define lpc43xx_WWDT_H_
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/* Includes ------------------------------------------------------------------- */
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#include "LPC43xx.h"
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#include "lpc_types.h"
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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/* Public Macros -------------------------------------------------------------- */
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/** @defgroup WWDT_Public_Macros WWDT Public Macros
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* @{
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*/
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/** WDT oscillator frequency value */
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#define WDT_OSC (12000000UL) /* WWDT uses IRC clock */
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/**
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* @}
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*/
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/* Private Macros ------------------------------------------------------------- */
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/** @defgroup WWDT_Private_Macros WWDT Private Macros
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* @{
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*/
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// time is calculated by usec
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#define WDT_GET_FROM_USEC(time) ((time*10)/((WWDT_US_INDEX *10 * 4)/WDT_OSC))
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#define WDT_GET_USEC(counter) ((counter * ((WWDT_US_INDEX *10 * 4)/WDT_OSC))/10)
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/* --------------------- BIT DEFINITIONS -------------------------------------- */
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/** WWDT interrupt enable bit */
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#define WWDT_WDMOD_WDEN ((uint32_t)(1<<0))
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/** WWDT interrupt enable bit */
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#define WWDT_WDMOD_WDRESET ((uint32_t)(1<<1))
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/** WWDT time out flag bit */
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#define WWDT_WDMOD_WDTOF ((uint32_t)(1<<2))
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/** WDT Time Out flag bit */
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#define WWDT_WDMOD_WDINT ((uint32_t)(1<<3))
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/** WWDT Protect flag bit */
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#define WWDT_WDMOD_WDPROTECT ((uint32_t)(1<<4))
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/** Define divider index for microsecond ( us ) */
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#define WWDT_US_INDEX ((uint32_t)(1000000))
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/** WWDT Time out minimum value */
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#define WWDT_TIMEOUT_MIN ((uint32_t)(0xFF))
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/** WWDT Time out maximum value */
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#define WWDT_TIMEOUT_MAX ((uint32_t)(0x00FFFFFF))
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/** WWDT Warning minimum value */
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#define WWDT_WARNINT_MIN ((uint32_t)(0xFF))
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/** WWDT Warning maximum value */
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#define WWDT_WARNINT_MAX ((uint32_t)(0x000003FF))
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/** WWDT Windowed minimum value */
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#define WWDT_WINDOW_MIN ((uint32_t)(0xFF))
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/** WWDT Windowed minimum value */
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#define WWDT_WINDOW_MAX ((uint32_t)(0x00FFFFFF))
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/** WWDT timer constant register mask */
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#define WWDT_WDTC_MASK ((uint32_t)(0x00FFFFFF))
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/** WWDT warning value register mask */
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#define WWDT_WDWARNINT_MASK ((uint32_t)(0x000003FF))
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/** WWDT feed sequence register mask */
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#define WWDT_WDFEED_MASK ((uint32_t)(0x000000FF))
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/** WWDT flag */
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#define WWDT_WARNINT_FLAG ((uint8_t)(0))
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#define WWDT_TIMEOUT_FLAG ((uint8_t)(1))
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/** WWDT mode definitions */
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#define WWDT_PROTECT_MODE ((uint8_t)(0))
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#define WWDT_RESET_MODE ((uint8_t)(1))
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/* WWDT Timer value definition (us) */
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#define WWDT_TIMEOUT_USEC_MIN ((uint32_t)(WDT_GET_USEC(WWDT_TIMEOUT_MIN)))//microseconds
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#define WWDT_TIMEOUT_USEC_MAX ((uint32_t)(WDT_GET_USEC(WWDT_TIMEOUT_MAX)))
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#define WWDT_TIMEWARN_USEC_MIN ((uint32_t)(WDT_GET_USEC(WWDT_WARNINT_MIN)))
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#define WWDT_TIMEWARN_USEC_MAX ((uint32_t)(WDT_GET_USEC(WWDT_WARNINT_MAX)))
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#define WWDT_TIMEWINDOWED_USEC_MIN ((uint32_t)(WDT_GET_USEC(WWDT_WINDOW_MIN)))
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#define WWDT_TIMEWINDOWED_USEC_MAX ((uint32_t)(WDT_GET_USEC(WWDT_WINDOW_MAX)))
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/**
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* @}
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*/
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/* Public Types --------------------------------------------------------------- */
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/** @defgroup WWDT_Public_Types WWDT Public Types
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* @{
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*/
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/********************************************************************//**
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* @brief WWDT structure definitions
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**********************************************************************/
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typedef struct Wdt_Config
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{
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uint8_t wdtReset; /**< if ENABLE -> the Reset bit is enabled */
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uint8_t wdtProtect; /**< if ENABLE -> the Protect bit is enabled */
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uint32_t wdtTmrConst; /**< Set the constant value to timeout the WDT (us) */
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uint32_t wdtWarningVal; /**< Set the value to warn the WDT with interrupt (us) */
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uint32_t wdtWindowVal; /**< Set a window vaule for WDT (us) */
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}st_Wdt_Config;
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/**
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* @}
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*/
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/* Public Functions ----------------------------------------------------------- */
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/** @defgroup WWDT_Public_Functions WWDT Public Functions
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* @{
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*/
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void WWDT_Init(void);
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void WWDT_UpdateTimeOut(uint32_t TimeOut);
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void WWDT_Feed (void);
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void WWDT_SetWarning(uint32_t WarnTime);
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void WWDT_SetWindow(uint32_t WindowedTime);
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void WWDT_Configure(st_Wdt_Config wdtCfg);
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void WWDT_Start(void);
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FlagStatus WWDT_GetStatus (uint8_t Status);
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void WWDT_ClearStatusFlag (uint8_t flag);
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uint32_t WWDT_GetCurrentCount(void);
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/**
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* @}
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*/
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#ifdef __cplusplus
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}
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#endif
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#endif /* lpc43xx_WWDT_H_ */
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/**
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* @}
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*/
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